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| the close external resemblance of an organism to some different organism, such that it benefits from mistaken identity, as seeming to be unpalatable |
| the merging of two or more cells into a single cell |
B cell n.
See beta cell.
A type of lymphocyte that, when stimulated by a particular antigen, differentiates into plasma cells that synthesize the antibodies that circulate in the blood and react with the specific antigens. Also called B lymphocyte.
| B cell
Any of the lymphocytes that develop into plasma cells in the presence of a specific antigen. The plasma cells produce antibodies that attack or neutralize the antigen in what is called the humoral immune response. B cells mature in the bone marrow before being released into the blood. Also called B lymphocyte. Compare T cell. |
| B cell bone-marrow-derived cell |